Question

In triangle ABC, if AB=BC and ∠B = 70°, ∠A will be:


70


110


55


130​

Answer 1

Answer:

Step-by-step explanation:

ince, AB=BC

angle A = angle C

let angle A = x

so, angle C is also equal to x

angle A + angle B + angle C = 180 degree

2x + 70 = 180 degree

x = (180-70)/2

x = 55 degree

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Answer 2

Answer:

55 because angles opposite to the equal sides of a triangle are equal